49ers’ Christian McCaffrey leaves game against Bills with knee injury

49ers’ Christian McCaffrey leaves game against Bills with knee injury

ORCHARD PARK, N.Y. — Christian McCaffrey left Sunday night’s game against the Bills with a knee injury, suddenly halting the 49ers’ best start to his already truncated season.

McCaffrey, on his seventh carry of that snowy night, ran to his right and intentionally slid for a 5-yard loss to the Buffalo 34-yard line. After a 5-minute exam in the 49ers medical tent, he ran to the locker room with his right sock pulled down to his ankle.

The NFL Offensive Player of the Year last season, McCaffrey missed the first two months of this season (eight games) with Achilles tendinitis.

It was his fourth game back, and he rushed for 58 yards on his first six carries, including gains of 19 and 18 yards throughout the season.

He appeared to injure his knee when he landed hard on the artificial (and cold) turf at Highmark Stadium, after being tripped by safety Taylor Rapp to end an 18-yard run 12:15 before halftime.

McCaffrey also made two receptions for 14 yards for the upset-seeking 49ers (5-6).

The 49ers initially considered him a questionable return before demoting him at halftime. Kevin Givens is also out with a chest injury.